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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- P P R I N T --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 2008-2018, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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17 -- for more details. You should have received a copy of the GNU General --
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18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
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19 -- http://www.gnu.org/licenses for a complete copy of the license. --
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20 -- --
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21 -- GNAT was originally developed by the GNAT team at New York University. --
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22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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23 -- --
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24 ------------------------------------------------------------------------------
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25
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26 -- This package (pretty print) contains a routine for printing an expression
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27 -- given its node in the syntax tree. Contrarily to the Sprint package, this
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28 -- routine tries to obtain "pretty" output that can be used for e.g. error
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29 -- messages.
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30
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31 with Types; use Types;
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32 with Urealp; use Urealp;
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33
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34 package Pprint is
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35
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36 generic
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37
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38 -- ??? The generic parameters should be removed.
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39
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40 with function Real_Image (U : Ureal) return String;
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41 with function String_Image (S : String_Id) return String;
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42 with function Ident_Image (Expr : Node_Id;
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43 Orig_Expr : Node_Id;
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44 Expand_Type : Boolean) return String;
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45 -- Will be called for printing N_Identifier and N_Defining_Identifier
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46 -- nodes
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47 -- ??? Expand_Type argument should be removed
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48
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49 Hide_Parameter_Blocks : Boolean := False;
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50 -- If true, then "Parameter_Block.Field_Name.all" is
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51 -- instead displayed as "Field_Name".
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52
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53 Hide_Temp_Derefs : Boolean := False;
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54 -- If true, then "Foo.all" is instead displayed as "Foo"
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55 -- in the case where Foo is a compiler-generated constant
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56 -- initialized to Some_Captured_Value'Reference.
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57
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58 function Expression_Image
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59 (Expr : Node_Id;
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60 Default : String) return String;
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61 -- Given a Node for an expression, return a String that is meaningful for
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62 -- the programmer. If the expression comes from source, it is copied from
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63 -- there.
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64 -- Subexpressions outside of the maximum depth (3), the maximal number of
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65 -- accepted nodes (24), and the maximal number of list elements (3), are
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66 -- replaced by the default string.
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67
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68 end Pprint;
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